*{
    margin: 0;
    padding: 0;
}
body{
    background-color: lightgray;

}

h1{
    width: 500px;
    /*background-color: #fc4a4a;*/
    margin-left: 200px;
    margin-top: 50px;
}
.link{
    width: 800px;
    height: 50px;
    margin: 0 auto;
    text-align: center;

}
.link button{
    width: 100px;
    height: 50px;
    border-radius: 10px;
    margin: 10px;
}
a{
    text-decoration: none;
    color: black;
}
iframe{
    margin: 20px;
    width: 100%;
    height: 100%;
}